Nah, the second one isn't all that true, I upgraded mine, I have a pad at the bottom to catch the larger stuff, then carbon, then ceramic bio media and it's just the small Fluval 2 internal. I just used some extra media I had laying around, cut the pad to size, bagged up the ceramic media, threw in an aquaclear carbon bag and called it a day.
I hid mine behind a piece of driftwood, which works great since the flow from it goes right under the driftwood which has a cave my pleco likes to hide in, he seems to appreciate the extra current.